"flags" -> "actions" a few places in the docs.

docs/how-to/deal-with-very-large-backups.md

@@ -14,7 +14,7 @@ repositories.
 
 If you find yourself in this situation, you have some options. First, you can
 run borgmatic's pruning, creating, or checking actions separately. For
-instance, the the following optional flags are available:
+instance, the the following optional actions are available:
 
 ```bash
 borgmatic prune
@@ -25,7 +25,7 @@ borgmatic check
 (No borgmatic `prune`, `create`, or `check` actions? Try the old-style
 `--prune`, `--create`, or `--check`. Or upgrade borgmatic!)
 
-You can run with only one of these flags provided, or you can mix and match
+You can run with only one of these actions provided, or you can mix and match
 any number of them in a single borgmatic run. This supports approaches like
 making backups with `create` on a frequent schedule, while only running
 expensive consistency checks with `check` on a much less frequent basis from

docs/how-to/inspect-your-backups.md

@@ -32,7 +32,7 @@ borgmatic --stats
 
 ## Existing backups
 
-Borgmatic provides convenient flags for Borg's
+Borgmatic provides convenient actions for Borg's
 [list](https://borgbackup.readthedocs.io/en/stable/usage/list.html) and
 [info](https://borgbackup.readthedocs.io/en/stable/usage/info.html)
 functionality: